Harrow or cultivator tooth fastening



(No Model.)

- P. WILOO X HARROW 0R GULTIVATOR TOOTH FASTENING. No. 368,039. IPatented Aug. 9, 1887.

#1 Z n @dwr UNITED STATES PATENT OFFICE.

FRANK WILCOX, OF EEEsE, MICHIGAN.

HARROW OR CULTIVATOR TOOTH FASTENING.

SPECIFICATION forming part of Letters Patent No. 368,039, dated August9, 1887.

Application filed February 23, 1887. Serial No. 228,562. (No model.)

To all whom it may concern:

Be it known that I, FRANK WILOOX, a citizen of the United States,residing at Reese, in the county of Tuscola and State of Michigan, haveinvented a new and useful Improvement in Harrow or Cultivator ToothFastenings, of which the following is a specification.

My invention is an improvement in harrow or cultivator tooth fastenings,and has for its object to provide a device of this class which shall besuperior to those which have preceded it in points of efficiency,simplicity, and durability.

The novelty consists in certain peculiar features of the device shown inthe accompanying drawings, as will be hereinafter first fully described,and then pointed out in the claims.

In the accompanying drawings, which fully illustrate my invention,Figure 1 is a side ele vation of my improved device. Fig. 2 is a centralvertical sectional view. Fig. 3 is a vertical cross-sectional view takenon the line y y of Fig. 1; and Figs. 4, 5, and 6 are detail perspectiveviews of the saddle and'couplingplate, respectively.

Referring to the drawings by letter, A designates the tooth-bar; B, thetooth, and O the spring for pressing the tooth normally into the groundagainst the draft.

D represents a bracket or attaching-plate, which, for convenience ofdescription, I denominate the saddle. This saddle rests squarely againstthe top side of the tooth-bar, as shown, and is provided at its rearedge with the perforated lugs d, between which the upper endof the toothB is hung upon a pivot pin or bolt, b,passed therethrough. The upperside of the saddle is made concave, as shown at E, and is provided withtwo longitudinal side flanges, e, between which the spring rests inpractice, and by which it is held against lateral vibration.ThespringOis provided at one end with a clip, 0, by which it is held tothe tooth. From the point of its attachment to the tooth the springpasses up back of the tooth and above the tooth-bar in a gradual curve,and is then turned sharply toward the tooth-bar, and then passes alongthe saddle, being seated in the concave portion of the same. From thesaddle the spring passes above the tooth in a line approximatelyparallel thereto,

its free end bearing thereon. It will thus be seen that the entirestrength of the spring is utilized and directed against the tooth. Thespring is held against the saddle, and prevented from being displaced bythe couplingplate F,which is convex on its lower face, and 1s placedagainst that portion of the spring which rests in the saddle. It isprovided on its opposite side edges with the lugs f,through which thebolts G, inserted through the toothbar and held therein, pass to receivethe securing-nuts g, which, by being turned up against the lugs,causethc plate to bind against the spring and the saddle, and therebyfirmly fasten the several parts together.

From the foregoing description,taken in connection with the accompanyingdrawings, the operation of my device will be easily understood and itsadvantages readily appreciated. The parts are all simple inconstruction, and in case one part should become broken or inj ured itcan be easily repaired or replaced Without affecting the rest of thedevice. By the peculiar arrangement of parts shown and described theentire strength of the spring is applied to the tooth, and the spring isalso supported andbracedat its weakest point, and is held againstlateraldisplacement. The saddle also prevents the spring contacting with thetooth-bar as it rocks to accommodate itself to the motion of the tooth,and consequently prevents the wearing away of the tooth-bar from thatsource.

As shown and described the device is adapted for use on harrows. When itis desired to use it ona cultivator, the tooth is made longer and thefastening devices are applied to the rear side of the tooth-bar.

Having thus described my invention, what I claim, and desire to secureby Letters Patent,

1. The combination, with the tooth-bar, of the saddle having the concaveupper face, the tooth pivotally secured to the rear edge of the saddle,the spring resting in the concave portion of the saddle, and having bothends bearing on the rear or upper side of the spring, and the convexcoupling-plate fitted to the saddle and holding the spring therein,substantially as described.

2. The combination, with the tooth-bar, of

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in 10 presence of two witnesses.

FRANK \VILCOX.

Vitnesses:

GEORGE W. Romans, .Lmrns LAMBERT.

